Scientific Communication - Eppp Skills

1. What is the best plain-language translation of "relative risk" without using jargon?

   How many times more likely one group is than another. Relative risk expresses the ratio of probabilities between exposed and unexposed groups, indicating comparative likelihood without absolute context.

2. Find and correct the overgeneralization: "This result applies to everyone."

   Correct: "This result applies to people similar to the study sample.". Addressing overgeneralization requires specifying applicability to similar populations, acknowledging sample-specific constraints in research.

3. What is the primary goal when translating empirical findings for a non-scientific audience?

   Communicate accurate meaning in plain language without distortion. This goal preserves the integrity of scientific information while making it accessible and understandable to those without technical expertise.

4. Which option best translates a wide confidence interval for a lay audience?

   The estimate is imprecise; the true effect could vary widely. Wide confidence intervals reflect greater uncertainty in the parameter estimate, indicating potential variability in the true effect size.

5. What is the best practice for translating group averages to individual expectations?

   State that averages do not predict each person's outcome. Group averages represent central tendencies but fail to account for individual variability, necessitating caveats in personal applications.

6. What is the most accurate way to describe a study's limitation to the public?

   A factor that could reduce confidence or narrow where results apply. Limitations acknowledge constraints that may affect the validity, scope, or applicability of research findings.

7. Identify the best plain-language translation of "clinically significant" in treatment research.

   A change large enough to matter in daily functioning or well-being. Clinical significance evaluates whether treatment effects yield meaningful improvements in real-world contexts, beyond statistical thresholds.

8. Which option best avoids overstating conclusions when translating findings?

   Use probabilistic wording and specify the population and context. Probabilistic language and contextual specificity temper claims, aligning communication with the inherent uncertainties of empirical research.

9. Identify the key distinction to communicate between relative and absolute risk.

   Relative compares groups; absolute states the real baseline chance. Distinguishing relative from absolute risk clarifies comparative versus baseline probabilities, preventing misinterpretation of risk magnitudes.

10. Find and correct the causal overreach: "The study proves therapy X cures depression."

    Correct: "The study suggests therapy X may reduce depression.". Correcting causal overreach involves using tentative language to reflect correlational evidence rather than implying definitive proof or outcomes.

11. What is the best plain-language replacement for the term "statistically significant"?

    Unlikely due to chance alone, given the study's assumptions. Statistical significance indicates results that are improbable under the null hypothesis, warranting a simple explanation to avoid technical jargon.

12. What is the best nontechnical description of "replication" in research?

    Finding similar results again in a new study. Replication verifies the reliability of findings by reproducing them under similar conditions, strengthening scientific confidence.

13. What is the best plain-language translation of "absolute risk"?

    The actual chance of the outcome in a group. Absolute risk denotes the unconditional probability of an event occurring, offering a direct measure of occurrence in a specific group.

14. What is the clearest way to describe a $p$-value to a lay audience without implying effect size?

    Chance-based evidence against the null, not the size of the effect. A $p$-value quantifies evidence against the null hypothesis based on probability, distinct from measures of practical impact or strength.

15. Which option best translates $r=0.30$ without implying causation or certainty?

    A modest association: as one increases, the other tends to increase. An $r=0.30$ indicates a weak to moderate positive linear relationship, emphasizing tendency without causation or determinism.

16. What is the best plain-language definition of a randomized controlled trial (RCT)?

    Participants are assigned by chance to compare interventions fairly. RCTs minimize bias by randomly allocating participants, enabling fair comparisons of treatment effects in controlled settings.

17. What is the best plain-language definition of a confound in a study?

    A third factor that could explain the observed relationship. Confounds are extraneous variables that can obscure or mimic the true relationship between the independent and dependent variables in research.

18. What is the best nontechnical description of a correlation between two variables?

    They tend to change together, but one may not cause the other. Correlation describes a statistical relationship where variables covary, but it does not establish directional influence or causality.

19. Which statement correctly translates "correlation does not imply causation" for the public?

    Two things can be linked without one producing the other. The phrase highlights that observed associations may stem from confounding factors rather than direct causal links.

20. What is the most accurate plain-language meaning of a $95\%$ confidence interval?

    A method that captures the true value about $95\%$ of the time. A $95\%$ confidence interval represents a range that, across repeated samples, would include the true parameter in approximately 95% of cases.

21. Which option best translates $p=0.04$ without implying importance or certainty?

    The result is unlikely by chance alone under the null assumption. A $p=0.04$ suggests the observed data are improbable under the null, but it does not convey effect magnitude or absolute certainty.

22. What is the best plain-language definition of "base rate" in risk communication?

    How common the outcome is before considering any risk factor. Base rate provides the foundational prevalence of an outcome, essential for contextualizing additional risks or diagnostic accuracies.

23. What is the most accurate way to translate "effect size" for a nontechnical audience?

    How large or meaningful the difference or association is. Effect size quantifies the magnitude of a phenomenon, providing context beyond mere statistical significance for practical interpretation.

24. What is the best way to translate "generalizability" for a non-scientific audience?

    Whether findings likely apply to people outside the study sample. Generalizability assesses the extent to which study results can be extrapolated to broader populations beyond the sampled group.

25. Which criterion best indicates that a translation is audience-centered rather than researcher-centered?

    It uses the audience's terms, context, and decisions as the frame. Audience-centered translation prioritizes the recipients' perspectives to enhance relevance and comprehension over the researcher's internal framework.

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